Finding the Fourth Proportional to 274,493,253.68, 411,753,122.80 and 90,256,650.96
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Solution
The fourth proportional to 274,493,253.68, 411,753,122.80 and 90,256,650.96 is: 135,389,330.66
Step by Step Solution
- Step 1: Write the proportion equation
274,493,253.68 : 411,753,122.80 = 90,256,650.96 : x - Step 2: Convert to fraction form
274,493,253.68/411,753,122.80 = 90,256,650.96/x - Step 3: Cross multiply
274,493,253.68x = 411,753,122.80 × 90,256,650.96 - Step 4: Simplify right side
274,493,253.68x = 37,163,457,886,249,616 - Step 5: Solve for x
x = 37,163,457,886,249,616/274,493,253.68 - Step 6: Final answer
x = 135,389,330.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.